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Nervilia crociformis, commonly known as the trembling nervilia[2] or round shield orchid,[3] is a small terrestrial orchid found in South and Southeast Asia and in New Guinea and northern Australia. It has a single short-lived green flower with a white labellum. A more or less circular leaf held horizontally above the ground emerges at the base of the flowering stem after flowering.
Nervilia crociformis is a terrestrial, perennial, deciduous, sympodial herb which grows in clonal colonies with only a few individuals producing flowers in any one year. A single green flower 25–30 mm (0.98–1.2 in) long and 30–35 mm (1.2–1.4 in) wide is borne on a flowering stem 40–80 mm (2–3 in) tall. The sepals are 16–19 mm (0.6–0.7 in) long and about 2 mm (0.08 in) wide while the petals are similar but slightly shorter. The labellum is white, 15–18 mm (0.6–0.7 in) long with a wide fringe and small, hairy calli. The flower only lasts for two or three days, following which a single leaf develops, including on those plants that did not flower. The leaf is dark green, more or less circular, 40–70 mm (2–3 in) in diameter with about ten radiating veins. Flowering occurs between November and December in Australia and from May to June in India.[2][3][4][5]
Trembling nervilia was first formally described in 1846 by Heinrich Zollinger and Alexander Moritzi who gave it the name Bolborchis crociformis and published the description in the Moritzi's book Systematisches verzeichniss der von H. Zollinger.[1][6] In 1978, Gunnar Seidenfaden changed the name to Nervilia crociformis.[7]
Nervilia crociformis occurs in Tropical Africa, Southern Africa, islands of the western Indian Ocean, Taiwan, the Indian subcontinent, Indochina, Malesia, New Guinea, Queensland, New Caledonia, Samoa and Vanuatu.[1] It grows in moist deciduous forests and on the edges of rainforest.[3][5]
Nervilia crociformis, commonly known as the trembling nervilia or round shield orchid, is a small terrestrial orchid found in South and Southeast Asia and in New Guinea and northern Australia. It has a single short-lived green flower with a white labellum. A more or less circular leaf held horizontally above the ground emerges at the base of the flowering stem after flowering.
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Leaves of Nervilia crociformis
Nervilia crociformis là một loài thực vật có hoa trong họ Lan. Loài này được (Zoll. & Moritzi) Seidenf. mô tả khoa học đầu tiên năm 1978.[1]
_-_Nervilia_punctata_(as_Pogonia_p.)_-_Nervilia_crociformis_(as_Pogonia_crispata)_-_Xenia_2_pl_126.jpg)
Nervilia crociformis là một loài thực vật có hoa trong họ Lan. Loài này được (Zoll. & Moritzi) Seidenf. mô tả khoa học đầu tiên năm 1978.
四重溪脉叶兰（学名：Nervilia crociformis）为兰科脉叶兰属下的一个种。
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